Estimation and Analysis for Widelane Carrier Phase Fractional Bias of Satellite

A new algorithm named interval averaging method for estimating wide-lane single-difference-between-satellite FCBs is proposed.We use GPS data from 120 stations of IGS in 2010,all wide lane FCBs of each satellite are estimated and the estimation precision is analyzed in detail.The experiment results show that the estimated FCBs agree with CNES's very well.The difference between each other is less than 0.1 cycles,and 94% is less than 0.05 cycles.In FCBs estimation,station number and distribution of network have no significant affect on the FCBs value,but more stations you used lead to higher reliability and accuracy.Wide-lane FCBs are very stable in a year.On the other hand,satellite transmission restart will cause a new FCBs.